Javascript Scroller

[ljlbray]

Hi.

Can anyone see anything wrong immediately about the following code?

I can't seem to get it to hide behind the global navigation dropdown menus on my sharepoint site :-(

 

 

#pscroller1{

width: auto;

height: 160px;

border: 0px solid #9AC6FF;

padding: 5px;

background-color: white;

z-index:0;

}

 

img {

border: 0px solid #FFFFFF;

}

 

 

var pausecontent=new Array()

pausecontent[1]=''

pausecontent[2]=''

pausecontent[0]=''

pausecontent[3]=''

 

 

function pausescroller(content, divId, divClass, delay){

this.content=content //message array content

this.tickerid=divId //ID of ticker div to display information

this.delay=delay //Delay between msg change, in miliseconds.

this.mouseoverBol=0 //Boolean to indicate whether mouse is currently over scroller (and pause it if it is)

this.hiddendivpointer=1 //index of message array for hidden div

document.write('

'+content[0]+'

'+content[1]+'

')

var scrollerinstance=this

if (window.addEventListener) //run onload in DOM2 browsers

window.addEventListener("load", function(){scrollerinstance.initialize()}, false)

else if (window.attachEvent) //run onload in IE5.5+

window.attachEvent("onload", function(){scrollerinstance.initialize()})

else if (document.getElementById) //if legacy DOM browsers, just start scroller after 0.5 sec

setTimeout(function(){scrollerinstance.initialize()}, 500)

}

 

pausescroller.prototype.initialize=function(){

this.tickerdiv=document.getElementById(this.tickerid)

this.visiblediv=document.getElementById(this.tickerid+"1")

this.hiddendiv=this.hiddendiv=document.getElementById(this.tickerid+"2")

this.visibledivtop=parseInt(pausescroller.getCSSpadding(this.tickerdiv))

//set width of inner DIVs to outer DIV's width minus padding (padding assumed to be top padding x 2)

this.visiblediv.style.width=this.hiddendiv.style.width=this.tickerdiv.offsetWidth-(this.visibledivtop*2)+"px"

this.getinline(this.visiblediv, this.hiddendiv)

this.hiddendiv.style.visibility="visible"

var scrollerinstance=this

document.getElementById(this.tickerid).onmouseover=function(){scrollerinstance.mouseoverBol=1}

document.getElementById(this.tickerid).onmouseout=function(){scrollerinstance.mouseoverBol=0}

if (window.attachEvent) //Clean up loose references in IE

window.attachEvent("onunload", function(){scrollerinstance.tickerdiv.onmouseover=scrollerinstance.tickerdiv.onmouseout=null})

setTimeout(function(){scrollerinstance.animateup()}, this.delay)

}

 

pausescroller.prototype.animateup=function(){

var scrollerinstance=this

if (parseInt(this.hiddendiv.style.top)>(this.visibledivtop+5)){

this.visiblediv.style.top=parseInt(this.visiblediv.style.top)-5+"px"

this.hiddendiv.style.top=parseInt(this.hiddendiv.style.top)-5+"px"

setTimeout(function(){scrollerinstance.animateup()}, 50)

}

else{

this.getinline(this.hiddendiv, this.visiblediv)

this.swapdivs()

setTimeout(function(){scrollerinstance.setmessage()}, this.delay)

}

}

 

pausescroller.prototype.swapdivs=function(){

var tempcontainer=this.visiblediv

this.visiblediv=this.hiddendiv

this.hiddendiv=tempcontainer

}

 

pausescroller.prototype.getinline=function(div1, div2){

div1.style.top=this.visibledivtop+"px"

div2.style.top=Math.max(div1.parentNode.offsetHeight, div1.offsetHeight)+"px"

}

 

pausescroller.prototype.setmessage=function(){

var scrollerinstance=this

if (this.mouseoverBol==1) //if mouse is currently over scoller, do nothing (pause it)

setTimeout(function(){scrollerinstance.setmessage()}, 100)

else{

var i=this.hiddendivpointer

var ceiling=this.content.length

this.hiddendivpointer=(i+1>ceiling-1)? 0 : i+1

this.hiddendiv.innerHTML=this.content[this.hiddendivpointer]

this.animateup()

}

}

 

pausescroller.getCSSpadding=function(tickerobj){ //get CSS padding value, if any

if (tickerobj.currentStyle)

return tickerobj.currentStyle["paddingTop"]

else if (window.getComputedStyle) //if DOM2

return window.getComputedStyle(tickerobj, "").getPropertyValue("padding-top")

else

return 0

}

 

 

new pausescroller(pausecontent, "pscroller1", "someclass", 3000)

[ljlbray]

oh forgot to mention. The global navigation drop down appears behind the scroller for Admins and Site Designers.

 

Weird...

[Pashers]

OK few things without looking too deep into it:

#pscroller1{

...

z-index:0;

}

The z-index:0; is setting this layer to 0. Meaning that it will be placed behind layers which are 1+ and infront of 0 or less.

 

Try changing the z-index to a higher number. Give me a shout if this still doesn't work. Also you might want to put semi colons at the end of the coding line. But try the z-index thing first

 

Peter

[ljlbray]

Thanks Peter, but I don't want the news ticker to appear in front of anything, the global navigation is disappearing behind the news ticker for all users that aren't site owners. But I'll have a fiddle with that bit again.

Cheers for now!

[Pashers]

Where is the global navigation part? If you send the global navigation I'll give it a quick look.

Have you thought about making a flash file? This could do something similar.

Edited April 21, 2010 by Pashers